Using implementations as an example, on the page for a given implementation, it would be useful to have a visual cue that the implementation is referenced by its function (as opposed to an unused/unreferenced implementation).
One way to do is: add a field to the ZFunction Reference secondary table to track whether a given ZObject is referenced by its function.
But since we are loading the relevant Z8 anyway, it might not need to be stored in a secondary table.
This might be done as part of Arthur's work on T284694: Enable "What Links Here" to include ZObject references.
Change 719377 had a related patch set uploaded (by Lindsay Wardell; author: Lindsay Wardell):
[mediawiki/extensions/WikiLambda@master] Show whether a ZImplementation or ZTester is associated with its function.
Change 719377 merged by jenkins-bot:
[mediawiki/extensions/WikiLambda@master] Show whether a ZImplementation or ZTester is associated with its function.